I'll give it a shot, Gary.
The locked in gear might be the N light is on, but the shift drum was on the raggedge of bumping into gear. Before starting, roll the bike back and forth without the clutch lever pulled in. That's one gear down... no pun intended.
My problem is I do not own one of these. So I'm thinking, and I might be wrong, but is there a safety sequence that won't make the bike start? Say if the N light was off, the bike in gear, and you forgot to find N before you touch the starter and the bike lunges forward? Those were the old days. Maybe these bikes have this built in with some switches at lever or in the black box? So that's a no start scenario is a false neutral event?
Back to the locked in gear. Looks like we are not saying the starter is locked on the clutch basket, or you'd have the battery getting hot, the starter getting hotter, the relay stuck and all that gear to gear lock... it's not. So if the start is not happening, turn the dial of the multimeter to 20v; secure the meter leads so you can watch the battery volts drop off the battery; roll the bike back and forth, but hand shift with left hand and find N with your eyes closed. Who cares about the light; we find out two things.
1. The bike does crank and start. The battery draw went down but had the ability to start the engine or crank it over very strong and for a long time. So, it's not the battery, nor the black box needing to start with a lit N.
2. The bike just cranks, does not jump in gear, does not start, it's the black box looking for a lit N, where you found physical neutral.
Neutral switch loose?
So this is assuming that there is no real lock of any gear, meaning, you can go thru the transmission with a rock back and forth with left hand. That means, no gear can be locked if you can shift the gears up and down, push the bike in gear and turn the crank with a good shove, right? It was just some safety switch when it went to what I think is a lock. Am I close?